Patents by Inventor Jay J. Croft

Jay J. Croft has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for laying fibrous webs from a centrifugal spinning process
    Patent number: 9670595
    Abstract: A method for laying down a nanoweb of nanofibers from a centrifugal spinning process by a combination of an air flow field and a charging arrangement. Fibrous streams in the form of fibrils of molten polymer or polymer solution are discharged from a rotating member into an air flow field that is essentially parallel to the direction of discharge of fibrils at the point of discharge of the fibrils. The fibrous streams are attenuated and directed by means of the air flow field onto the surface of a collector to form a nanoweb. The fibrous streams are charged along all or at least a portion of their route from the point of discharge to the surface of the collector.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 6, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Tao Huang, Jack Eugene Armantrout, Thomas William Harding, Thomas Patrick Daly, Jay J Croft, Carl Saquing, Glenn Creighton Catlin
  • PROCESS FOR LAYING FIBROUS WEBS FROM A CENTRIFUGAL SPINNING PROCESS
    Publication number: 20160047061
    Abstract: A method for laying down a nanoweb of nanofibers from a centrifugal spinning process by a combination of an air flow field and a charging arrangement. Fibrous streams in the form of fibrils of molten polymer or polymer solution are discharged from a rotating member into an air flow field that is essentially parallel to the direction of discharge of fibrils at the point of discharge of the fibrils. The fibrous streams are attenuated and directed by means of the air flow field onto the surface of a collector to form a nanoweb. The fibrous streams are charged along all or at least a portion of their route from the point of discharge to the surface of the collector.
    Type: Application
    Filed: December 20, 2012
    Publication date: February 18, 2016
    Applicant: E I Du Pont De Nemours and Company
    Inventors: TAO HUANG, JACK EUGENE ARMANTROUT, THOMAS WILLIAM HARDING, THOMAS PATRICK DALY, JAY J. CROFT, CARL SAQUING, GLENN CREIGHTON CATLIN
  • ELECTRET NANOFIBROUS WEB
    Publication number: 20150111019
    Abstract: The present invention is directed toward an electret nanofibrous web comprising a single source randomly intermingled fiber network with a range of fiber diameters that yields improved mechanical strength.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 23, 2015
    Inventors: TAO HUANG, Gelnn Creighton Catlin, Jay J. Croft, Thomas Patrick Daly, Zachary R. Dilworth, Thomas William Harding, Vindhya Mishra, Carl Saquing, Wai-Shing Yung